When is a RID code produced by a drive ?

["bilm" <fence61775@mypacks.net>]

There is a discussion about this over at
    "CDfreaks/Forums/Optical Storage Technical Discussions"
but so far the "experts" over there have not been able to answer the
question.

This guy who posted has some type of a duplication business. He wants to
keep track of which discs are recorded by his various drives. He wants to
use RID codes to do this.

He is writing data only (not audio) using TAO with data block type Mode 2
CD-ROM XA, form 1. He does not close the session, he leaves it appendable.
Is a RID code produced during this recording ?
If so, which scsi command(s) do you use to read the RID code data ?

TIA,

bilm